The official Friends youtube channel has started listing a number of full episodes of the ‘Joey’ series (in HD and widescreen)…
1x01: The Pilot - www.youtube.com/watch?v=ST2y17euBlc
1x02: Joey and the Student - www.youtube.com/watch?v=X5oCPvGe-4M
1x03: Joey and the Party - www.youtube.com/watch?v=g7iAe94z438
1x04: Joey and the Book Club - www.youtube.com/watch?v=xUFB_Znb4yU
Maybe they’ll be adding more soon…?